Contrivance for making capsules for bottles and the like.



E.A.STRATTON, OONTRIVANCE FOR MAKING CAPSULES FOB BOTTLES AND THE LIKE.

APPLICATION FILED FEB.25, 1911.

Patented Dec. 19, 1911.

INVENTOK WITNESSES: I

UNITED STATES PATENT OFFICE,

EGIBEB'JP- ARTHUR STB ATTON, OF HAMPSTEAD, LONDON ENGLAN D, ABBIGNOR '10 MAN- SELL, HUNT, GATTY AND COMPANY, LIMITED, OF LONDON, ENGLAND.

Specification of Letters Patent.

Patented Dec. 19, 1911.

Application filed February 26, 1911. Serial" No. 610,826.

To all whomit may concern:

Be it known that I, EGBERT ARTHUR STRATTON, a subject of the King of Great Britain, residingmat Cressy Road Hampstead, in the county of London, ngland, have invented new arid useful Improvements in Contrivances for,Making Capsules for Bottles and the Like, of which the following is a specification.

This-invention relates to, improvementsin contrivances for creasing and plaiting disks of thin material intmcu shaped form to serve as capsules for bottes, soufll cupsor analo ous articles.

Hit erto in contrivances for this purose, the change from the disk to the cup ormation has been eflected by one air of engaging elements which are require to' undergo a considerable ran e of relative movement, and are of relatlve fragilityof construction and are otherwise less perfect than the contrivance of the present invention, in which the operation commences by creasing'the outward lying portion of the disk into saucer shape by en agement between one pair of surfaces, 1; is-operat-ion' being "followed by the engagement of the material betweena second pair of elements which plaits the material and causes it to acquire a cup formation, the plaiting o eration being completed by a relative y small displacement of a plurality of plaiting blades which arev forced against the outer surface of the cup in a direction which has a tangential component.

The accompanying drawing shows a form of construction of apparatus adapted to effect the above described series of operations.

1, with portions reis i an exterior plan arm a secured to a cam-operated rod (1. The

sectional portion a is mounted co-axially -on the rod e of the internal or mandrel portion b, which is formed ,with oblique ribs similar to the teeth of a milling cutter.

- formation.

y in section taken a ong" The rod 0 is so mounted and actuated as to be capable of downward displacement relatively to a. i

The under surface of a is so indented and coned as to fit an indented and coned die f, secured within a fixed socket g, there being in the socket, beneath f, an annular blade carrier-vh adapted to receive the material after having been, shaped between a and f and plait it from the saucer to the cup formation.

The u which 1; e portion a o the plunger is omitted and the mandrel portion b inserted, the lower half being a sectional plan taken through the line 33 of Fig. 1.

The principal cup shaping portion of the contrivance consists of a. combination of oblique ribs on b with the ed es of a plurality of plaiting blades is whi are mounted in obhque sllts in the carrier h andare so pivotal adapted to undergo an angular: displacement aboutthe center-line of the ring in the lanes of the slits formed in thetcarrier h. hese slits are so situated that the plaiting blades carried therein are so uided that, when forced into the recesses in they approach it in a direction which has a tangential component, so that each plait is tucked between the two adjoining plaits.

The advancement of the plaiting blades toward 6 is efi'ected by means of a ring m -which on being raised, through the me- The consequent inward movement in a tangential direction of the blades 70 completes the plaiting of the material into cup The lever a, is actuated by a cam-moved rod 0 which carries a tappet On the release of the pressure of p on t e lever' the ring m is drawn downward by the action of a pair of springs q and, on its return to its lowest position, it presses on the tail portions k 0 the blades is causing the blades tolretire into their normal pos1- tions within the slits in h and release the plaited cup.

On the return upward-movement of the mandrel portion b of the plunger, the plaited cup is, under the action of a s ring 3, ejected from the carrier h by a dis 1', carper half of Fi 3 is a plan in.

y mounted on a ring 5 as to be rounding said blades ried on a guided rod r, the spring having previously undergone compression on the descent of'the plunger. I

The disk 1' erforms an additional useful function as fo lows :After the insertion of the disk of material to be 0 erated on within the open end of the soc et the upper border of which at g is beveled to center the disk, the descent of the two-part plunger a b causes the disk of material to be gripped between r and the lower end ofthe mandrel portion b, whereby it will be conveyed downward in a truly centered manner with its middle portion depressed before theportion a of the plunger enters into enga ement with it and forces it to conform to t e shape of the indented coned die f. After compression between the surfaces of a and f the pressure of a on f is released by the cam rod d being lifted prior to the further descent of the mandrel b, the saucer-shaped material being in the meantime retained in place by the pressure of b on the disk r.

I claim:

1. In a contrivance for creasing and plaiting thin disks into capsules for bottles or the like, a two-part plunger consisting of an inner conical portion having oblique ribs and a coaxial outer ortion havin a conical indentedunder sur ace, a conica indented die beneath said outer portion of said plunger, an annular blade carrier beneath said die, blades pivoted in obliqueslits in said 5 carrier and means for inwardly displacing the upper portions of said blades.

2. In a contrivance for creasing and plaiting thin disks into capsules for bottles or the like, atwo-part plunger consisting of an inner conical portion having oblique ribs and a coaxial outer ortion having a conical indented under-sur ace, a conical indented die beneath said outer portion of said pluner, an annular blade carrier beneath said ie, blades ivoted in oblique slits in said carrier said lades having outwardly sloping backs and an axially displ'aceable rin sur.-

in contact wit the backs thereof. 7 a

3. .In a contrivance for creasing and plaiting thin disks into capsules for bottles or the like, a two-part plunger consisting of an inner conical portion having oblique ribs and a coaxial outer ortion havin a conical indented under-sur ace, :1. conica inderited die beneath said outer portion of said pluner, an annular blade carrier beneath said ie, blades pivoted in oblique slits in said carrier said blades having outwardly sl ingbacks andtailportionsandansxidll; displaceable ring surro said blades in contact with the backs thereof above said tail portions.

4. In a contrivance for creasing and hiting thin disks into capsules for bott es or the like, a two-part plunger consisting of an inner conical pontion having oblique ribs and a coaxial outer portion having a conical indented under surface, a socket beneath said plunger, a conical indented die in said socket beneath said outer portion of said plunger, an annular blade carrier in said socket beneath said die, blades ivoted in oblique slits in said carrier said b ades having outwardly slopinlg backs and tail portions and a rin axia y dis laceable in said socket surroun ing said b ades in contact with the backs thereof above said tail portions. 5. In a contrivance for creasing and plaiting thin disks into capsules for bottles or the like, a two-part plunger consisting of an inner conical portion having oblique ribs and a coaxial outer ortion having a conical indented under sur ace, a conical indented die beneath said outer portion of said plunger, an annular blade carrier beneath said die, blades mounted obliquely in said carrier and means for ejecting said capsule from said carrier.

6. In a contrivance for creasing and plaiting thin disks into capsules for bottles or the like, a two-part plunger consisting of an inner conical portion having oblique ribs and a coaxial outer portion having a conical indented under surface, a socket beneath said plunger, a conical indented die in said socket beneath said outer portion of said plunger, an annular blade carrier in said socket beneath said die, blades pivoted in oblique slits in said carrier, said blade having outwardly sloping backs and tail portions, a ring axially dis laceable in said socket surrounding said blades in contact with the backs thereof above said tail ortions a longitudinally displaceable r coaxially mounted in said socket and a spring beneath said rod.

In testimony whereof I have signed my name to this specification in the presence of two subscribin witnesses.

EGBER ARTHUR STRATTON.

Witnesses:

R. Was'raco rr, H. W. Wsononn. 

